Wood-planing machine



(No Model.) 2 sheets-sheen il H. A. LEE.

Woon PLANING MACHINE.

No. 356,482. Patented Jan. 25, 1887.

(No Model.) 2 Sheets-Sheet 2.

H. A. LEE.

WOOD PLANING MACHINE.

No. 856,482. Patented Jan. 25.1887.

il@ Si adjusting the expanding feed-rolls; in the DETTE STATES HENRY A. LEE, or WoRo ESTER, MASSAHUSETTS.

woon-PLANING MACHINE.

SPECIFICATION forming part of Letters P Application filed December 31, 1883 atent No. 356,452, dated January 25,1897.

. Seriana-116,111. (No model.)

To aZZ whom it may concern:

. Be it known that I, HENRY A. LEE, a citizen ofthe United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Wood-Planing Machines, 'of which the following is a specification, containing a full, clear, and exact description of the same, illustrated by the accompanying drawings, in which- Figure l represents a side elevation of a planing-machine embodying my invention. Fig. 2 is the same, with portions of the mechanism for operating the feed-rolls removed. Fig. 3 shows a detached view of the plate carrying parts of the feeding mechanism. Fig. 4 is a longitudinal sectional view showing the inner side of the side of the machine shown in Figs. l and 2, and illustrating the lifting-plates by which the feed-rolls are raised. Fig. 5 shows the method of weighting the front feedrolls. Fig. 6 is a front view ofthe iexible7 presser-bar. Fig. 7 is an enlarged and sectional view of a portion of the same, and Fig. 8 is a sectional view of the sliding plate B in the way c2 on line S S, Fig. 2.

Similar letters refer to similar parts in the several views.

My invention consists in means for raising the upper cutter-head, the several feed-rolls, and the presser-bars simultaneously; in the construction and arrangement of devices for arrangement of the feed-actuati ng mechanism; in the construction of the flexible presser-bar, and in the method of weighting the feed-rolls.

A indicates the frame of the machine; B, the sliding plate, forming a stand for the upper` cutter-head and vertically adjustable in the Ways C2 by means of the screw D held in the bearing D, and rotated by the bevel-gear E and the bevel. gear E on the horizontal shaft E2, to which a crank or hand wheel may be applied.

F, Fig. 2, is the shaft of the upper cutterhead, shown in section, the belt pulley F3 having been removed.

F are ways extending transversely across the machine, and in which the lower cutterhead,.F, driven by the belt-pulley F2, may be drawn out at the side of the machine, a con-r l struction4 which was made the subject-matter of the Letters Patent No. 120,589, granted to me November 7, 1 871.

Extending laterally from each side of the sliding plate B are the Wings G G, having slots C C, allowing the wings to slide past the bosses C Gon the frame A. Upon the under side of the wing G are the bosses (shown by the broken lines) h h h, Fig. 2, extending through the slots eZ d in the frame, and to which the plate H is attached, so the plate H will have a vertical movement on the inside of the frame conjointly with that of the sliding plate B and wing G on the outside ofthe frame. The plate H, bifurcated to inclose the shaft L, extends upward, with its upper edges, H and H, projecting laterally to the right and left, respectively, and passing beneath the bearings J and J2 of the upper feed-rolls, which lie in the curved slots K and K2 in the frame A.

The projecting spurs a a, Figs. 2 and 5, I extend transversely across the box, resting them on the edges H and H, in order to reduce the point of contact and more readily admit of the slight rotation of the bearings J JI consequent upon their moving in the curved slots K K2. By a similar construction the Wing G has the bosses hh h extending th rough the slots d d in the frame A, and attached thereto is the plate H3 on the inner side of the frame and extending upward, with its upper edge projecting laterally to the left and beneath the upper feedroll bearing, J, lying in the curved slot K. To the upper ends of the sliding plate B and the inner plate, H3, I attach a bar, N, which carries a rigid presser bar or plate held down upon the upper surface of the work by the screws 7c 7c.

Pivoted to a lug, Z, is a short lever extending over thebearing of the upper cutter-head and carrying the block Z and an adjustable presser-bar, O. (Shown in Fig. 6.)

rlhe above-described arrangement of plate B, wings G G', inner lifting-plates, H H3, bar N, pivoted lever and block Z, actuating-screw D, and beveled gears E E' are duplicated, substantially, on the opposite side of the machine,

the shaft E2 of the gear E extending across beneath the frame A, and connecting the correspondingbevel-gear upon the other side of the machine, so that the rotation of the shaft E2 IOO will canse a simultaneous motion of the sliddirection of the arrow "V, Fig. 1, giving atending plates upon both sides, with all their connected parts.

The method of uniting the adjusting devices, as described, has long been in use, and is therefore not shown in the drawings.

It will be seen that. thevertieal adjustment of the sliding plate B with the upper cutterhead will also secure a simultaneous and corresponding adjustrnent of all the upper feedrolls and p rcsser-bars, so that the necessary adjustment of the entire machine may be effected by the single action of turning the shaft Ff.

To the frame A, and outside the sliding plate B and wings G G', Iattach, by suitable screws or bolts, the plate A, Figs. 1 and 3, its upper edge resting on the bosses C C', attached to the frame A and its lower edge supported by the bosses a a. (Shown by broken lines in Fig. 3.) The arm or bracket R, attached to the plate A', supports the shaftbearing, the beltpulley 2, and the pinion 3, which meshes into the gears 4 and 10, turni ng on studs attached to the plate A. To the hubs of the gears 4 and 10 are attached the pinions 5 and 1l, which mesh into the gears 6 and 12 upon the rotating shafts L and L, extending through the machine and journaled in proper bearings in the frame A. Upon the hubs ofthe gears 6 and 12 are the pinions 7 and 13, which mesh into similar pinions, 8 and 14, turning on studs L2 and L3 in the frame A.

The pinions 7 and 13 drive the pinions 9 and 15 on the ends of the lower feed-rolls, whose bearings M are held in slots in the frame A, and may be provided with screws or such other devices as are in common use for the purpose of secu ring the proper adjustment of the lower feed-rolls with reference to the bed of the machine. The pinions 8 and 14 drive the pi nions 19 and 16 on the upper feed-rolls, whose bearings slide in the slots K, K', and K2, curved concentrically to the driving'pinions S and 14, so that the pinions 19 and 16 will remain inv gear at varying vertical heights. The slots K, K', and K2 are straight at their bottom ends and` open at the top, permitting the upper feedrolls to be readily removed. The cap-pieces 1) p serve toprotect the roll-bearings and gears from chips or dirt.

The upper feed-roll, 19, I weight by means of the hook r, hooked at'its upper end over the top of the bearing J, and at its lower end, beneath the weighted lever I?, pivoted to the inner lifting-plate H3. The 'front upper feedrolls are weighted by the device shown in Figs. 4 and 5, in which J J2 are the feed-roll bearings, and around which I pass the hooks e e', having rods e c, extending downward and passing through holes somewhat larger than the rods in the yoke f. Through the yoke f, I pass the rod g, which hooks beneath the weighted lever g', pivoted to the inner liftingplate H. Nuts on the ends of the rods e and g attach them to the yoke j', and also allow an adjustment of their length.

As the drivingegear 14 has a motion in the ency to the feed-roll on the left to move npward and away from the bed-plate of the machine. I counteract this tendency by making the arms of the yokef, as determined by the attachment of the rods c e, of unequal length, the arm f being shorter` than the arm f, thereby bringing the greater weight on the roll 20. The adjustable presser-bar O, Fig. I form of the usual shape, and to the top is hinged the curved guardplate m. The ends of the presser-bar have tenons o o, entering mortises o o in the blocks Z, which are held on the levers pivoted4 at Z and passing through the mortises Z2. The mortises o 0 are made slightly wider than the tenons o o, as shown in Fig. 7, for the purpose of allowing the presser-bar to assume a position at a slight angle with the bed-plate when boards with sides of unequal thickness are passed beneath it. or guides on the sides ofthe machine, (shown in section in Fig. 8,) the ways having beveled sides cl c2, a small space being left between the plate B and the side of the framemA. The plate B is held in the ways C2 C2 by a screw bolt, b', passing through the slot b and entering the frame. This method of fastening the sliding plate by means of a screw-bolt has been long in use; but by the use of the beveled ways with such mode of fastening I am able to hold the plate B more iirmly, taking up any wear that may occur and preventing any vibration of the cutter-head, which is one of the most common sources of imperfect work. By loos- The sliding plate B moves in ways IOO ening the binding-screw bolt b the plate B is at once permitted to move freely by the actuating-screw D. Y

I do not confine myself to any special form of the wings G Gor of the innerlifting-plates, H H", nor do I claim, broadly, the raising of the upper feed-rolls simultaneously with the cutter-head, as such has been before accomplished; but by my present arrangement of the mechanism for lifting the cutter-head and feed-rolls I carry out the lateral wings from the lower end of the plate sliding upon the side of the machine, where it is actuated by the operating-screw, instead of from the upper end, as has usually been done, and I connect the lateral wings with the bearing of t-he feedrolls by lifting-plates carried up on the inside of the machine, where they do not interfere with the driving mechanism. By this means I remove all lateral strains from the plate slidingin ways on the side of the machine, rendering it much easier to be operated by the actuating-screw.

Vhat I do claim as my invention, and desire to secure by Letters Patent, is

l. The combination, with the upper cutterhead and the upper feed-rolls of a woodworking machine, of the mechanism for simultaneously raising the same when such mechanism consists of a plate sliding in ways on the side of the machine and carrying the bearing of the upper cutter-head, said plate having IIO wings extending laterally therefrom, with projections passing through the side of the machine, and lifting-plates attached thereto and extending upward on the inside ofthe machine, upon whose upper edges the bearings of the upper feed rolls rest, as and for Athe purpose set forth.

2. The combination, with the upper cutter head and presser plate or vbar over the lower cutter-head, of mechanism for simultaneously raising the same when such mechanism consists of a plate sliding in ways on the'outside of the machine and carrying the bearings of theupper cutter-head, said plate having a wing extending laterally therefrom with projections passing through the side of the machine, a lifting-plate attached thereto and extending upward on the inside of the machine, and a horizontal bar connecting the upper ends of the outer sliding plate and the inner lifting-plate,

said bar supporting the upper presser-plate, as described, and for the purpose set forth.

3. The combination, with the frame of a wood-planing machine, of the plate A', attached to the side of the machine and parallel thereto, said parallel plate carrying a portion of the driving mechanism, substantially as described, and for the purpose set forth.

4. The belt-pulley 2 and pinion 3 on a shaft journaled in bearings at the side of the machine, intermediate gears, 4 and 10, driven by the pinion 3 and carrying pinions 5 and 11, engaging gears 6 and 12, gears 6 and 12, carrying pinions 7 and 13, which engage pinions on the shafts of the lower feed-rolls, and the pinions 8 and 14, turning on Studs attached to the frame driven by the pinions 7 and 13, and engaging pinions on the shafts of the upper lfeed-rolls, all combined and operating as described, and for the purpose set forth.

5. The combination, with the cutter-head of a wood-working machine and a plate supporting said cutter-head and sliding in ways on the side of the machine, whereby the vertical adjustment ofthe cutter-head 'is effected, of ways adapted to receive the sliding plate, said ways having their sides c2 c2, forming the bearing-surface for said sliding plate, made oblique to the side of the machine, with devices for binding said sliding plate firmly against the oblique sides of the ways, as and for the purpose set forth.

6. The combination, with the uppeiyfeedrolls of a wood-working machine carrying actuating-gears, of a driving gear rotating on a stud attached to the frame of thex machine and engaging the gears upon the upper feedrolls, slots in said frame curved concentrically to the driving-gear 4and holding the bearings of the upper feed-rolls, lifting platesor bars, substantially as described, extending beneath said bearings and having actuating means connected therewith, whereby the bearing of said upper feed-rolls may be raised and maintained zit-varying heights in said curved slots relatively to the said driving-gear, as and for the purpose set forth.

7. The combination, with the frame of a Wood-working machine and driving-gearsI turning on studs or shafts held therein and a 7o pair of feed-rolls forming an upper and under 7 feed-roll and having actuating-gears, of slots in said frame to receive the bearings of said upper and under feed-rolls and hold them in proper position, sovthe driving-gears in the frame may engage the gears on the rolls, said slots having their lower section straight and their upper section curved concentrically with the upper driving-gear, the straight and curved sections forming one con- 8o tinuoiis slot, so both the upper and Linder rollbearings may be entered at the top ofthe slot, as described, and for the purpose set forth.

8. rIhe combination, .with a pair of feedrolls driven by a gear-wheel engaging pinions on the two feed-rolls, whereby one of said feed-rolls is given a tendency to be raised away from the bed-plate, of a weighting device consisting of a weight applied to a yoke, f, said yoke being connected with said feed- 9o rolls at points unequally distant from the application of the weight to said yoke, so a greater pressure will be applied to one of said feed-rolls, substantially as described, and for the 'purpose set forth.

9. The combination, with the presser-bar O, having tenons o 0, of the mortised blocks Z, pivoted by levers to the machine at Z, said blocks having the mortises 00, slightly larger than the tenons o o, as and for the purposes set 10o forth.

10. The combination, with the feed -roll bearings having a Vertical motion in curved slots and a lift-ingbar or plate upon which said bearings rest, of the spurs a, projecting 105 from the under side of said bearings and resting on the lifting bar or plate, said spurs forming fulcrums to allow a free rocking motion of the bearings as they are carried upward in the curved slots, as and for the purpose set 11o I forth.

11. rlhc combination, with the upper cutterhead vand the upper feed-'rolls of a wood-working machine, of mechanism for simultaneously raising the same when such mechanism consists ofaplate sliding in ways on the side of the machine and carrying the bearing of the upper cutter-head, said plate having wings extending laterally from its lower section and said wings carrying lifting-plates extending zzo upward from the ways, and upon whose upper edges the bearings of the upper feed-rolls rest, as and for the purpose set forth.

HENRY A. LEE.

Witnesses:

RUFUs B. FowLER, GEO. E. SMITH. 

